Shareholder Report, Average Annual Return (Details) 1014042_Franklin High Yield Corporate ETF_Single Class_TSR Annual {Single Class} |
12 Months Ended | 60 Months Ended | 94 Months Ended |
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2026 |
|
| Franklin High Yield Corporate ETF | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Franklin High Yield Corporate ETF (NAV) | ||
| Average Annual Return, Percent | 8.05% | 4.64% | 5.83% |
| Bloomberg U.S. Aggregate Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||
| Average Annual Return, Percent | 4.35% | 0.31% | 1.98% |
| ICE BofA U.S. High Yield Constrained Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ICE BofA U.S. High Yield Constrained Index | ||
| Average Annual Return, Percent | 6.90% | 4.20% | 5.09% |